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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

16/RN
1/RN
4/RN
64/RN

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the __________ is called Euler's number.

Surface tension force
Elastic force
Viscous force
Pressure force

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Hydraulics and Fluid Mechanics in ME
Bernoulli's equation is applied to

All of the listed here
Orifice meter
Pitot tube
Venturimeter

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Hydraulics and Fluid Mechanics in ME
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

Three-fourth
Equal to
One-third
Two-third

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Hydraulics and Fluid Mechanics in ME
The dynamic viscosity of the liquid __________ with rise in temperature.

Remain unaffected
Decreases
Increases
None of these

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, inertial
buoyancy, gravity
inertial, gravity
buoyancy, pressure

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